Kylan is a modern American name that extends Kyle, a Scottish surname meaning "narrow strait", with the -an ending of Dylan and Rylan; it is sometimes also linked to the Irish Caolán, "slender". It has no long history but a familiar, easygoing sound. In the United States Kylan has hovered in the top 1000 since 2000, when it ranked number 995, reached number 515 in 2022 and stands at number 579 among boys' names in 2025.